/******************************************************************************
 * Copyright (c) 2010-2011, Duane Merrill.  All rights reserved.
 * Copyright (c) 2011-2018, NVIDIA CORPORATION.  All rights reserved.
 * Modifications Copyright (c) 2017-2021, Advanced Micro Devices, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the NVIDIA CORPORATION nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ******************************************************************************/

#ifndef HIPCUB_ROCPRIM_DEVICE_DEVICE_MERGE_SORT_HPP_
#define HIPCUB_ROCPRIM_DEVICE_DEVICE_MERGE_SORT_HPP_

#include "../../../config.hpp"

#include "../util_type.hpp"

#include <rocprim/device/device_merge_sort.hpp>

BEGIN_HIPCUB_NAMESPACE

struct DeviceMergeSort
{
    template<typename KeyIteratorT, typename ValueIteratorT, typename OffsetT, typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t SortPairs(void *         d_temp_storage,
                                                        std::size_t &  temp_storage_bytes,
                                                        KeyIteratorT   d_keys,
                                                        ValueIteratorT d_items,
                                                        OffsetT        num_items,
                                                        CompareOpT     compare_op,
                                                        hipStream_t    stream            = 0,
                                                        bool           debug_synchronous = false)
    {
        return ::rocprim::merge_sort(d_temp_storage,
                                     temp_storage_bytes,
                                     d_keys,
                                     d_keys,
                                     d_items,
                                     d_items,
                                     num_items,
                                     compare_op,
                                     stream,
                                     debug_synchronous);
    }

    template<typename KeyInputIteratorT,
             typename ValueInputIteratorT,
             typename KeyIteratorT,
             typename ValueIteratorT,
             typename OffsetT,
             typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t SortPairsCopy(void *              d_temp_storage,
                                                            std::size_t &       temp_storage_bytes,
                                                            KeyInputIteratorT   d_input_keys,
                                                            ValueInputIteratorT d_input_items,
                                                            KeyIteratorT        d_output_keys,
                                                            ValueIteratorT      d_output_items,
                                                            OffsetT             num_items,
                                                            CompareOpT          compare_op,
                                                            hipStream_t         stream = 0,
                                                            bool debug_synchronous     = false)
    {
        return ::rocprim::merge_sort(d_temp_storage,
                                     temp_storage_bytes,
                                     d_input_keys,
                                     d_output_keys,
                                     d_input_items,
                                     d_output_items,
                                     num_items,
                                     compare_op,
                                     stream,
                                     debug_synchronous);
    }

    template<typename KeyIteratorT, typename OffsetT, typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t SortKeys(void *        d_temp_storage,
                                                       std::size_t & temp_storage_bytes,
                                                       KeyIteratorT  d_keys,
                                                       OffsetT       num_items,
                                                       CompareOpT    compare_op,
                                                       hipStream_t   stream            = 0,
                                                       bool          debug_synchronous = false)
    {
        return ::rocprim::merge_sort(
            d_temp_storage, temp_storage_bytes,
            d_keys, d_keys, num_items,
            compare_op, stream, debug_synchronous
        );
    }

    template<typename KeyInputIteratorT,
             typename KeyIteratorT,
             typename OffsetT,
             typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t SortKeysCopy(void * d_temp_storage,
                                                           std::size_t & temp_storage_bytes,
                                                           KeyInputIteratorT d_input_keys,
                                                           KeyIteratorT      d_output_keys,
                                                           OffsetT           num_items,
                                                           CompareOpT        compare_op,
                                                           hipStream_t stream = 0,
                                                           bool debug_synchronous = false)

    {
        return ::rocprim::merge_sort(
            d_temp_storage, temp_storage_bytes,
            d_input_keys, d_output_keys, num_items,
            compare_op, stream, debug_synchronous
            );
    }

    template <typename KeyIteratorT,
             typename ValueIteratorT,
             typename OffsetT,
             typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t
    StableSortPairs(void *d_temp_storage,
                    std::size_t &temp_storage_bytes,
                    KeyIteratorT d_keys,
                    ValueIteratorT d_items,
                    OffsetT num_items,
                    CompareOpT compare_op,
                    hipStream_t stream = 0,
                    bool debug_synchronous = false)
    {
        return ::rocprim::merge_sort(d_temp_storage,
                                     temp_storage_bytes,
                                     d_keys,
                                     d_keys,
                                     d_items,
                                     d_items,
                                     num_items,
                                     compare_op,
                                     stream,
                                     debug_synchronous);
    }

    template<typename KeyIteratorT, typename OffsetT, typename CompareOpT>
    HIPCUB_RUNTIME_FUNCTION static hipError_t StableSortKeys(void *        d_temp_storage,
                                                             std::size_t & temp_storage_bytes,
                                                             KeyIteratorT  d_keys,
                                                             OffsetT       num_items,
                                                             CompareOpT    compare_op,
                                                             hipStream_t   stream   = 0,
                                                             bool debug_synchronous = false)
    {
        return ::rocprim::merge_sort(
            d_temp_storage, temp_storage_bytes,
            d_keys, d_keys, num_items,
            compare_op, stream, debug_synchronous
        );
    }

};
END_HIPCUB_NAMESPACE

#endif // HIPCUB_ROCPRIM_DEVICE_DEVICE_MERGE_SORT_HPP_
